I have a lot of stuff on my website, but if I could propose an alternative of sorts here... where I just shoot from the hip instead of worrying about others.
My Favorite Historicist Scenario
Genuine Paul - ca. 50-60 AD
GMark - ca. 66-70 AD
GMatthew - ca. 90-95 AD (uses Mark)
GJohn - ca. 95-100 AD (uses Mark)
GMarcion - ca. 130 AD (uses a synoptic or harmony? there's a thread on this...)
GLuke - ca. 145 AD (uses GMark, GMatthew, GJohn, GMarcion)
Acts - ca. 145 AD (uses Josephus, the letters of Paul, possibly a travelogue)
Most Other NT Letters - ca. 80-110 AD
Pastoral Epistles - ca. 145 AD (like Luke-Acts, reacts to Marcion)
2 Peter - ca. 155 AD
Pseudo-Ignatius - ca. 155 AD
1 Clement - ca. 130 AD
2 Clement - ca. 150 AD
Shepherd of Hermas - ca. 150 AD
Gospel of Thomas - ca. 130 AD
My Favorite Non-Historicist Scenario (differences only)
Non-Genuine Paul - ca. 110-120 AD
GMark - ca. 100 AD
GJohn - ca. 110 AD
GMatthew - ca. 110 AD
Most Other NT Letters - ca. 110-140 AD
Shepherd of Hermas - 1st century
Revelation - 95 AD
So, in my favorite non-historicist scenario, the Gospels came first as Christian literature. The Jesus there was not interpreted metaphorically. Rather, Jesus was a very earthly fiction at the start, at least in this scenario. The story was developed in the aftermath of the First Jewish War in a diaspora setting (Syria perhaps). While there may have been some literature from an earlier group with a theology only, that group did not use the name Jesus, and that literature didn't include the letters of Paul. (Have I worked this out much? No, I haven't. It's nothing really at the present.)
I'll stop here so this doesn't become all about the above...
Any other takers?
PS - Don't press too hard on the numbers above. I wrote this in less than 10 minutes.